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Finding the Fourth Proportional to 115,745.40, 173,627.70 and 36,857.40

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Solution

The fourth proportional to 115,745.40, 173,627.70 and 36,857.40 is: 55,289.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,745.40 : 173,627.70 = 36,857.40 : x
  2. Step 2: Convert to fraction form
    115,745.40/173,627.70 = 36,857.40/x
  3. Step 3: Cross multiply
    115,745.40x = 173,627.70 × 36,857.40
  4. Step 4: Simplify right side
    115,745.40x = 6,399,465,589.98
  5. Step 5: Solve for x
    x = 6,399,465,589.98/115,745.40
  6. Step 6: Final answer
    x = 55,289.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.